I guess it depends on how accurate you want your K3 frequency display to
be. I think AM-S will warp the frequency a tiny bit to sync the carrier
so that may not be the best mode. I'd also go as high as you can on WWV.
Wayne suggested a method that is somewhere on the E-site which I used--
Use the highest WWV frequency that you can hear well. USB or LSB, WIDTH
to 500-800 Hz, SHIFT so can hear the carrier beat note [it will be very
low]. CONFIG-->REF CAL, wait for a tone-less minute and adjust REF CAL
for exact zero beat. You'll be counting the pulsations in the
background noise as you come up on zero beat.
I got mine to about 10 seconds per pulsation on 20 MHz back when there
were sunspots. That's an accuracy of 0.1 Hz and everything below 20 MHz
will be at least that good.
73,
Fred K6DGW
- Sparks NV DM09dn
- Northern California Contest Club
- CU in the Cal QSO Party 7-8 Oct 2017
- www.cqp.org
On 12/16/2016 5:12 PM, Michael via Elecraft wrote:
If I set my K3's VFO to WWV at 5.000000 MHz with AM-S on....and I adjust
"REF CAL" to a number where
my VFO's frequency readout is exact or near this number +/- maybe a Hertz
or two. Is this an accurate way to calibrate my K3?
It seems to be very accurate as far as I can tell.
Has anyone used this method?
Michael
N2ZDB
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